stralis-he
Hydrogen-electric propulsion system
Combustion had a good run Hydrogen is ready for take-off
Our patent-pending fuel cell is 6x lighter than current state-of-the-art, enabling 10x longer flights than battery-electric and operating at up to 50% the cost of fossil fuel aircraft.
- 120 kW
- Maximum continuous power
- 1.7 kW/kg
- Specific power
- 70 kg
- Total system weight
- 50%
- Net efficiency at cruise
Stralis–HE
A hydrogen-electric fuel cell system designed for aircraft propulsion
High-temperature PEM technology simplifies the system, reducing both weight and drag. Our system integrates our fuel cell system with liquid hydrogen tanks and electric motors.
Lightweight
Low maintenance
Low drag
Zero emissions
Configuration options
The Stralis-HE system features scalable stacks connected in series, with turbocharging and liquid cooling.
Stack
Scalable fuel cell stack includes HT-PEM technology, aluminium plates, and composite housingStack +
Fuel cell system includes our scalable fuel cell stack plus cooling, turbocharger, and controllerHEPS
A complete propulsion system from propellor to pilot interface with optional gas or liquid H2 tank
Interested in our tech or want to know more? Talk to our team ›
Download specificationLeaded aircraft fuel is being phased out
Worldwide 150,000 piston aircraft use fuel that will soon be banned. Our zero- emission system is designed to retrofit Beechcraft Bonanza 36, Cirrus SR22T, Vans RV-10, Mooney M20 and more.
Retrofit and replace
Piston engine aircraft
We integrate our proprietary fuel cell system, liquid hydrogen tanks and electric motors into aircraft. Our system is designed to retrofit aircraft like the Beechcraft Bonanza 36, Cirrus SR22T, Vans RV-10, Mooney M20 and can replace a Continental IO engine.
Talk to our team ›We are currently taking expressions of interest for Bonanza and piston engine retrofits
Learn moreAviation is electrifying but batteries alone are limited
Our long-range high-temperature PEM technology enables useful range, long life and fast refuel.
Use-case: Bonanza A36-HE Retrofit Payload Range. Current Hydrogen-Electric vs. Battery vs. Fossil Fuel vs. Stralis Hydrogen-Electric
Aircraft developers
Fixed wing electric and eVTOL
Our hydrogen-electric propulsion system can upgrade battery-electric aircraft, replace conventional engines, and be integrated into new aircraft designs.
Talk to our team ›
Building and testing
After thousands of hours in testing, Stralis-HE doesn’t just measure up, it stands out on every metric
Explore use-cases
Our Stralis-HE hydrogen-electric propulsion system scales to suit a range of aircraft sizes and types.
